Six small envelopes with no. 1 2 3 4 5 6 are shown. The performer puts a bill into one of the envelopes secretly. You invite a spectator to throw out a dice on the table; each time the top number of dice matches the number of one of the envelopes, that envelope is placed aside. For example, if the dice is five, the fifth envelope is to be taken away. The spectator is told he will get the contents of the last envelope.